:root{--blue:#3f8fe5;--blue-dark:#2875c7;--blue-soft:#eaf4ff;--ink:#1f2d3d;--text:#34495e;--muted:#6f7f90;--line:#d8e4f0;--light:#f4f7fb;--light2:#eef3f9;--shadow:0 12px 32px rgba(43,97,153,.10);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:"Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#2f83d8}img{max-width:100%;height:auto;display:block}button,a{touch-action:manipulation}.skip-link{position:fixed;left:14px;top:-60px;background:#fff;color:#1f2d3d;padding:10px 14px;z-index:12000;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;width:100%;z-index:9999;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid #e5edf5;box-shadow:0 6px 20px rgba(43,97,153,.08)}.header-inner{max-width:1240px;min-height:70px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}.site-logo{flex:0 0 auto}.site-logo img{width:174px;max-height:44px;object-fit:contain}.nav-core{display:flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}.nav-core a{color:#34495e;text-decoration:none;padding:8px 9px;border-radius:8px;font-size:15px}.nav-core a:hover,.nav-core a.active{color:var(--blue-dark);background:var(--blue-soft)}.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;color:#fff;background:var(--blue);border:0;border-radius:10px;text-decoration:none;box-shadow:0 10px 24px rgba(63,143,229,.22);position:relative;z-index:2;pointer-events:auto;font-weight:700;transition:.2s ease}.main-btn:hover{background:#2f7fd3;transform:translateY(-1px)}.main-btn:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,a:focus-visible{outline:3px solid rgba(40,117,199,.35);outline-offset:3px}.menu-toggle{width:46px;height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;position:relative;z-index:3}.menu-toggle span{width:21px;height:2px;background:#1f2d3d;border-radius:2px}.drawer-overlay{position:fixed;inset:0;background:rgba(19,43,69,.38);z-index:10000;opacity:0;transition:opacity .22s ease}.drawer-overlay.is-visible{opacity:1}.site-drawer{position:fixed;top:0;right:0;width:min(390px,92vw);height:100dvh;background:#fff;z-index:10001;transform:translateX(105%);transition:transform .24s ease;box-shadow:-20px 0 50px rgba(31,45,61,.18);padding:18px;overflow-y:auto}.site-drawer.is-open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid #e5edf5}.drawer-logo img{width:160px}.drawer-close{width:44px;height:44px;border:0;border-radius:10px;background:var(--light);font-size:30px;line-height:1;cursor:pointer;color:#34495e}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:18px 0}.drawer-nav a{display:flex;align-items:center;min-height:46px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;text-decoration:none;color:#34495e;background:#fff}.drawer-nav a:hover{border-color:#7eb5eb;color:#2875c7;background:#f8fbff}.drawer-download{width:100%}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.section{padding:86px 0}.section-light{background:var(--light)}.section-soft{background:var(--light2)}.section-head{max-width:780px;margin:0 auto 38px;text-align:center}.eyebrow{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;background:var(--blue-soft);color:var(--blue-dark);border-radius:999px;font-size:14px;font-weight:700;letter-spacing:.02em}.section-title,.page-title,h1,h2,h3{color:var(--ink);line-height:1.25}.section-title{font-size:clamp(30px,4vw,44px);margin:14px 0}.section-desc{color:var(--muted);margin:0}.text-link{color:#2f83d8;font-weight:700;text-decoration:none}.text-link:hover{text-decoration:underline}.button-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:28px}.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border:1px solid #9cc8ee;border-radius:10px;color:#2875c7;text-decoration:none;background:#fff;font-weight:700}.secondary-btn:hover{background:#f5faff;border-color:#3f8fe5}.notice{padding:18px 20px;border-left:4px solid #3f8fe5;background:#f5faff;border-radius:0 12px 12px 0;color:#435d76}.danger-notice{border-left-color:#2f7fd3;background:#edf6ff}.small-note{font-size:14px;color:var(--muted)}
.hero{position:relative;overflow:hidden;padding:74px 0 82px;background:linear-gradient(180deg,#fff 0%,#f7fbff 100%)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:#eaf4ff;z-index:0}.hero:before{width:380px;height:380px;right:-160px;top:-150px}.hero:after{width:220px;height:220px;left:-100px;bottom:-90px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:58px}.hero h1{font-size:clamp(42px,5.5vw,70px);margin:16px 0 20px;letter-spacing:-.03em}.hero-subtitle{font-size:clamp(20px,2.4vw,28px);color:#2875c7;font-weight:700;line-height:1.5;margin:0 0 18px}.hero-copy{font-size:17px;color:#53697f;max-width:690px}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.hero-points span{padding:8px 12px;border:1px solid #cfe1f2;background:#fff;border-radius:999px;color:#45637f;font-size:14px}.hero-visual{display:flex;justify-content:center}.hero-visual img{width:min(100%,620px);filter:drop-shadow(0 24px 38px rgba(43,97,153,.12))}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-42px;position:relative;z-index:3}.info-card,.category-card,.review-card,.faq-card,.content-card,.article-card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 24px rgba(43,97,153,.06)}.info-card{padding:26px}.info-card h2{font-size:20px;margin:0 0 10px}.info-card p{margin:0;color:var(--muted);font-size:15px}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.category-card{padding:30px;min-height:210px;display:flex;flex-direction:column;transition:.2s ease}.category-card:hover{transform:translateY(-4px);border-color:#78afe5}.category-card h3{font-size:23px;margin:0 0 12px}.category-card p{color:var(--muted);margin:0 0 18px;flex:1}.category-card:last-child{grid-column:1/-1;min-height:auto}.category-card:last-child .wide-card-inner{display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px}.wide-card-inner p{margin-bottom:0}
.split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:62px}.split.reverse .visual{order:2}.visual img{width:100%;max-height:520px;object-fit:contain}.copy h2{font-size:clamp(30px,4vw,44px);margin:12px 0 18px}.copy p{color:#53697f}.check-list{list-style:none;padding:0;margin:22px 0;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}.check-list li{position:relative;padding-left:24px}.check-list li:before{content:"✓";position:absolute;left:0;color:#2875c7;font-weight:700}.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.content-card{padding:34px}.content-card img{height:300px;width:100%;object-fit:contain;margin-bottom:24px}.content-card h2{font-size:28px;margin:0 0 14px}.content-card p{color:#53697f}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.article-card{padding:30px}.article-card h3{font-size:23px;margin:0 0 12px}.article-card p{color:var(--muted)}.date{font-size:14px;color:#7d8fa1;margin-bottom:10px}.tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-size:13px;font-weight:700;margin-bottom:12px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.review-card{padding:26px}.review-card p{margin:0;color:#4f667d}.review-card strong{display:block;margin-top:14px;color:#2875c7;font-size:14px}.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}.faq-card{padding:0;overflow:hidden}.faq-card details{padding:0}.faq-card summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;color:#1f2d3d;display:flex;justify-content:space-between;gap:18px}.faq-card summary::-webkit-details-marker{display:none}.faq-card summary:after{content:"+";color:#2875c7;font-size:22px}.faq-card details[open] summary:after{content:"−"}.faq-answer{padding:0 24px 22px;color:#5c7186}.risk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.risk-grid div{padding:22px;border:1px solid #cfe1f2;border-radius:12px;background:#fff}.risk-grid h3{font-size:18px;margin:0 0 8px}.risk-grid p{font-size:14px;color:var(--muted);margin:0}
.page-hero{padding:76px 0 58px;background:linear-gradient(180deg,#f7fbff,#fff);border-bottom:1px solid #e5edf5}.page-hero-inner{max-width:860px}.page-title{font-size:clamp(38px,5vw,58px);margin:14px 0 18px}.page-lead{font-size:18px;color:#53697f}.breadcrumb{font-size:14px;color:#789}.breadcrumb a{text-decoration:none}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:46px;align-items:start}.article-content{min-width:0}.article-content h2{font-size:30px;margin:44px 0 16px}.article-content h3{font-size:22px;margin:30px 0 12px}.article-content p{color:#4f667d}.article-content ul,.article-content ol{padding-left:22px;color:#4f667d}.article-content li{margin:8px 0}.article-content .content-card{margin:26px 0}.side-nav{position:sticky;top:100px;padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff}.side-nav h2{font-size:18px;margin:0 0 12px}.side-nav a{display:block;padding:8px 0;border-bottom:1px solid #edf2f7;text-decoration:none;color:#526b83}.side-nav a:last-child{border-bottom:0}.steps{counter-reset:step;display:grid;gap:16px;margin:24px 0}.step{position:relative;padding:22px 22px 22px 74px;border:1px solid var(--line);border-radius:14px;background:#fff}.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}.step h3{margin:0 0 8px;font-size:20px}.step p{margin:0}.term-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.term{padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff}.term h3{margin:0 0 8px}.term p{margin:0;color:var(--muted)}.news-list{display:grid;gap:18px}.news-item{padding:28px;border:1px solid var(--line);border-radius:14px;background:#fff}.news-item h2{margin:4px 0 10px;font-size:25px}.news-item p{margin:0;color:#5b7186}.contact-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.contact-step{padding:28px;border:1px solid var(--line);border-radius:14px;background:#fff}.contact-step span{display:inline-flex;width:36px;height:36px;border-radius:50%;align-items:center;justify-content:center;background:#3f8fe5;color:#fff;font-weight:700}.contact-step h2{font-size:22px}
.site-footer{background:#438ddf;color:#fff;padding:58px 0 0}.footer-inner{width:min(1160px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.05fr 1.95fr;gap:70px}.footer-brand img{width:180px;filter:brightness(0) invert(1);margin-bottom:20px}.footer-brand p{color:rgba(255,255,255,.88);max-width:420px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.footer-links h2{color:#fff;font-size:17px;margin:0 0 12px}.footer-links a{display:block;color:rgba(255,255,255,.88);text-decoration:none;padding:5px 0}.footer-links a:hover{color:#fff;text-decoration:underline}.footer-risk{width:min(1160px,calc(100% - 40px));margin:40px auto 0;padding:18px 20px;border:1px solid rgba(255,255,255,.28);border-radius:12px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.9);font-size:14px}.footer-bottom{margin-top:30px;padding:18px 20px;text-align:center;border-top:1px solid rgba(255,255,255,.18);font-size:14px;color:rgba(255,255,255,.78)}
@media(max-width:1080px){.nav-core{display:none}.hero-grid{gap:28px}.info-grid{grid-template-columns:repeat(2,1fr)}.review-grid{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.side-nav{position:static;display:none}.footer-inner{grid-template-columns:1fr;gap:36px}}
@media(max-width:768px){.header-inner{min-height:62px;padding:0 14px;gap:8px}.site-logo img{width:132px;max-height:38px}.header-actions{gap:6px}.header-download{min-height:44px;padding:0 14px;font-size:14px}.menu-toggle{width:44px;height:44px}.container{width:min(100% - 32px,1160px)}.section{padding:62px 0}.section-head{margin-bottom:28px}.hero{padding:48px 0 64px}.hero-grid{grid-template-columns:1fr;gap:28px}.hero h1{font-size:42px}.hero-subtitle{font-size:21px}.hero-visual{order:2}.hero-visual img{max-width:480px}.info-grid{margin-top:0;padding-top:20px;grid-template-columns:1fr}.category-grid{grid-template-columns:1fr;gap:18px}.category-card:last-child{grid-column:auto}.category-card:last-child .wide-card-inner{grid-template-columns:1fr}.split,.dual-grid{grid-template-columns:1fr;gap:34px}.split.reverse .visual{order:0}.check-list{grid-template-columns:1fr}.service-grid,.review-grid,.risk-grid,.contact-steps,.term-grid{grid-template-columns:1fr}.content-card{padding:24px}.content-card img{height:auto;max-height:340px}.button-row{align-items:stretch}.button-row .main-btn,.button-row .secondary-btn{width:100%}.page-hero{padding:54px 0 42px}.page-title{font-size:38px}.article-content h2{font-size:27px;margin-top:36px}.drawer-nav{grid-template-columns:1fr}.footer-inner,.footer-risk{width:min(100% - 32px,1160px)}.footer-links{grid-template-columns:1fr 1fr}.footer-brand img{width:160px}}
@media(max-width:430px){.site-logo img{width:112px}.header-download{padding:0 11px;font-size:13px}.menu-toggle{width:44px}.hero h1{font-size:34px;line-height:1.32}.hero-copy{font-size:16px}.footer-links{grid-template-columns:1fr}.site-drawer{width:94vw}.section-title{font-size:30px}}